Subsequent Events (Details) (USD $)	0 Months Ended
	Jun. 23, 2014	Jul. 23, 2014 Subsequent Event [Member]	Jun. 11, 2014 Senior Notes [Member]	Jan. 28, 2011 Senior Notes [Member] Seven Point Seven Five Percent Senior Secured Notes [Member]	Jun. 28, 2014 Companhia Providencia Industria e Comercio [Member]	Jun. 11, 2014 Companhia Providencia Industria e Comercio [Member]	Dec. 28, 2013 Companhia Providencia Industria e Comercio [Member]	Jul. 21, 2014 Companhia Providencia Industria e Comercio [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Repayments of Senior Debt	$ 56,000,000
Debt Instrument, Interest Rate at Period End			6.875%	7.75%
Debt Instrument, Redemption Price, Percentage		103.00%
Long-term Pollution Control Bond					$ 9,100,000	$ 9,100,000	$ 0	$ 9,100,000